Tortured Amalgamation

90 0 x 0.066 = 5 94

0.066

5 182 30 x 0.001 = 5 18

0.001

5 164 10 x 0.001 = 5 16

0.001

4 057 4 x 0.001 = 4 6

0.001

90 x 0.871 = 78.39

0.871